Hello Bruno
If you want to test this app, then you have to build this app with the mentioned process. For that, you don’t have to upload it on Google Play Store. When you want other users to download your app, in that case you need to upload it on Google Play Store.
I hope it will help you.

Thank you Neeraj!
I build this app and its work fine! Now i´m searching for a method to do this using a Java application in the server side, and setup the plugin for wokrs for iOS and Windows Phone! hugs

i setup all the procedure which u mentioned and also build phonegap and run my application.but i cant able to recieve registration ID …js alert showing empty msg and looking on db table …receiving empty field in regid,but other two fields value received.can u please help me out to slove this problem?